Tweed

Tweed, river, 97 mi (156 km) long, rising in the Southern Uplands of Scotland. It flows E through S Scotland then NE, forming the Scotland-England border for 17 mi (27 km) before entering the North Sea at Berwick, NE England. The Tweed system drains most of SE Scotland the Gala, Ettrick, and Teviot are its chief tributaries. In Scotland the Tweed waters a sheep-farming region and passes Peebles , Melrose , and Kelso. The Tweed also has rich salmon fisheries.